/*
* Tests of functionality within extras/timekeeping
*/
/*-
* Copyright (c) 2018, Jeff Kletsky
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* * Neither the name of the copyright holder nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <esp8266.h>
#include <esp/uart.h>
#include <FreeRTOS.h>
#include <task.h>
/* espressif/esp_system.h uses "bool" but fails to #include */
#include <stdbool.h>
#include <espressif/esp_common.h>
#include <espressif/esp_system.h>
#include <espressif/esp_wifi.h>
/* Not defined in espressif/esp_wifi.h */
extern bool
sdk_wifi_set_opmode_current(uint8_t opmode);
/* For sdk_system_restart_in_nmi() */
#include <esplibs/libmain.h>
#include <stdio.h>
#include <stdlib.h>
#define BLUE_LED 2
#define LED_ON 0
#define LED_OFF 1
#define WAIT_FOR_UART_SECS 5 /* 2 might be OK */
#define TV2LD(TV) ((long double)TV.tv_sec + (long double)TV.tv_usec * 1.e-6)
void
testTask(void *pvParameters)
{
struct timeval tv;
long num_runs;
long idx;
TickType_t base_ticks;
TickType_t increment_ticks;
int seconds_per_report;
struct timeval delta;
struct timeval olddelta;
gpio_enable(BLUE_LED, GPIO_OUTPUT);
gpio_write(BLUE_LED, LED_OFF);
vTaskDelay(WAIT_FOR_UART_SECS * 1000 / portTICK_PERIOD_MS);
gpio_write(BLUE_LED, LED_ON);
printf("\n");
printf("settimeofday to 1000000000\n");
tv.tv_sec = 1000000000;
tv.tv_usec = 0;
settimeofday(&tv, NULL);
printf("\n===== time-display runs =====\n");
num_runs = 10;
seconds_per_report = 1;
increment_ticks = (seconds_per_report * 1000) / portTICK_PERIOD_MS;
base_ticks = xTaskGetTickCount();
for (idx = 0; idx <= num_runs; idx++) {
gettimeofday(&tv, NULL);
printf("%20.6Lf at %ld ticks\n", TV2LD(tv), (long)(xTaskGetTickCount() - base_ticks));
vTaskDelay((base_ticks - xTaskGetTickCount()) + (increment_ticks * (idx + 1)));
}
num_runs = 15;
seconds_per_report = 1;
increment_ticks = (seconds_per_report * 1000) / portTICK_PERIOD_MS;
delta.tv_sec = 0;
delta.tv_usec = 5000; /* 5 ms -- should take 10 seconds */
printf("\n");
printf("with +5 ms slew requested\n");
adjtime(&delta, NULL);
base_ticks = xTaskGetTickCount();
for (idx = 0; idx <= num_runs; idx++) {
gettimeofday(&tv, NULL);
adjtime(NULL, &olddelta);
printf("%20.6Lf at %ld ticks; %0.6Lf olddelta\n",
TV2LD(tv), (long)(xTaskGetTickCount() - base_ticks), TV2LD(olddelta));
vTaskDelay((base_ticks - xTaskGetTickCount()) + (increment_ticks * (idx + 1)));
}
delta.tv_sec = 0;
delta.tv_usec = -5000; /* -5 ms -- should take 10 seconds */
printf("\n");
printf("with -5 ms slew requested\n");
adjtime(&delta, NULL);
base_ticks = xTaskGetTickCount();
for (idx = 0; idx <= num_runs; idx++) {
gettimeofday(&tv, NULL);
adjtime(NULL, &olddelta);
printf("%20.6Lf at %ld ticks; %0.6Lf olddelta\n",
TV2LD(tv), (long)(xTaskGetTickCount() - base_ticks), TV2LD(olddelta));
vTaskDelay((base_ticks - xTaskGetTickCount()) + (increment_ticks * (idx + 1)));
}
num_runs = 15;
seconds_per_report = 20;
increment_ticks = (seconds_per_report * 1000) / portTICK_PERIOD_MS;
delta.tv_sec = 0;
delta.tv_usec = 130 * 1000; /* 130 ms -- 128 ms needed for NTP */
printf("\n");
printf("with 130 ms slew requested (20-s reporting period)\n");
adjtime(&delta, NULL);
base_ticks = xTaskGetTickCount();
for (idx = 0; idx <= num_runs; idx++) {
gettimeofday(&tv, NULL);
adjtime(NULL, &olddelta);
printf("%20.6Lf at %ld ticks; %0.6Lf olddelta\n",
TV2LD(tv), (long)(xTaskGetTickCount() - base_ticks), TV2LD(olddelta));
vTaskDelay((base_ticks - xTaskGetTickCount()) + (increment_ticks * (idx + 1)));
}
delta.tv_sec = 0;
delta.tv_usec = -130 * 1000; /* -130 ms -- 128 ms needed for NTP */
printf("\n");
printf("with -130 ms slew requested\n");
adjtime(&delta, NULL);
base_ticks = xTaskGetTickCount();
for (idx = 0; idx <= num_runs; idx++) {
gettimeofday(&tv, NULL);
adjtime(NULL, &olddelta);
printf("%20.6Lf at %ld ticks; %0.6Lf olddelta\n",
TV2LD(tv), (long)(xTaskGetTickCount() - base_ticks), TV2LD(olddelta));
vTaskDelay((base_ticks - xTaskGetTickCount()) + (increment_ticks * (idx + 1)));
}
printf("\n");
printf("All done; reboot imminent\n");
gpio_write(BLUE_LED, LED_OFF);
sdk_system_restart_in_nmi();
}
void
user_init(void)
{
uart_set_baud(0, 115200);
sdk_wifi_set_opmode_current(NULL_MODE); /* Temporarily disable */
xTaskCreate(testTask, "testTask", 512, NULL, 2, NULL);
}